package com.example.demo.security;

import com.example.demo.entity.SysUser;
import com.example.demo.service.SysUserService;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.AuthorityUtils;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import javax.annotation.Generated;
import javax.annotation.Resource;
import java.util.List;
@Service
public class UserDetailServiceImpl implements UserDetailsService{
    @Resource
    SysUserService sysUserService;
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {


       SysUser sysUser = sysUserService.getByUsername(username);
       if(sysUser == null){
           throw new UsernameNotFoundException("用户名或密码不正确");
       }


        return new AccountUser(sysUser.getId(), sysUser.getUsername(), sysUser.getPassword(),getUserAuthority(sysUser.getId()) );
    }

    /**
     * 获取用户的权限信息，（角色、菜单权限）
     * @param userId
     * @return
     */
    public List<GrantedAuthority> getUserAuthority(Long userId){

        //角色、菜单操作权限
      String authority  =   sysUserService.getUserAuthorityInfo(userId);

        return AuthorityUtils.commaSeparatedStringToAuthorityList(authority);


    }

}
